package com.lrkj.back.vo.json;

import java.util.Map.Entry;

/*
 * Copyright (c) 2002 JSON.org
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * The Software shall be used for Good, not Evil.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

/**
 * Convert a web browser cookie list string to a JSONObject and back.
 * 
 * @author JSON.org
 * @version 2015-12-09
 */
public class CookieList {

    /**
     * Convert a cookie list into a JSONObject. A cookie list is a sequence of
     * name/value pairs. The names are separated from the values by '='. The
     * pairs are separated by ';'. The names and the values will be unescaped,
     * possibly converting '+' and '%' sequences.
     *
     * To add a cookie to a cookie list,
     * cookielistJSONObject.put(cookieJSONObject.getString("name"),
     * cookieJSONObject.getString("value"));
     * 
     * @param string
     *            A cookie list string
     * @return A JSONObject
     * @throws JSONException
     */
    public static JSONObject toJSONObject(String string) throws JSONException {
        JSONObject jo = new JSONObject();
        JSONTokener x = new JSONTokener(string);
        while (x.more()) {
            String name = Cookie.unescape(x.nextTo('='));
            x.next('=');
            jo.put(name, Cookie.unescape(x.nextTo(';')));
            x.next();
        }
        return jo;
    }

    /**
     * Convert a JSONObject into a cookie list. A cookie list is a sequence of
     * name/value pairs. The names are separated from the values by '='. The
     * pairs are separated by ';'. The characters '%', '+', '=', and ';' in the
     * names and values are replaced by "%hh".
     * 
     * @param jo
     *            A JSONObject
     * @return A cookie list string
     * @throws JSONException
     */
    public static String toString(JSONObject jo) throws JSONException {
        boolean b = false;
        StringBuilder sb = new StringBuilder();
        for (final Entry<String, ?> entry : jo.entrySet()) {
            final String key = entry.getKey();
            final Object value = entry.getValue();
            if (!JSONObject.NULL.equals(value)) {
                if (b) {
                    sb.append(';');
                }
                sb.append(Cookie.escape(key));
                sb.append("=");
                sb.append(Cookie.escape(value.toString()));
                b = true;
            }
        }
        return sb.toString();
    }
}
